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@Matt-FL If you loose grid power does your Emporia Vue work? I'm thinking with these volt meters, if I loose grid power I would still see voltage from the powerwalls, panels and the inverter.
Please correct me if I'm wrong.
With that situation the Tesla app will show no grid power, No powerwall power and panels?As was stated earlier by @Tazzman, the emporia stays running as long as my panel has power. I have whole-house backup, so as long as the powerwalls are providing power, my vue devices are running. If I was off-grid, and powerwalls ran out of power, then yes, the vues would go offline too. In that situation, I wouldn't really care .
What if the electrician hooked a meter to the house side of the main circuit breaker?No electrician should hook a meter like you want to the line side of your meter. If someone did and your power company saw it they would not be very happy about it.
In the almost 2 years since my Powerwalls have been installed none of the meters described would have helped at all. Hopefully the other installations are well done and robust enough that no additional meters are required. For the occasional service a hand held multimeter works for my purposes.With that situation the Tesla app will show no grid power, No powerwall power and panels?
Emporia would show nothing.
My volt meter panel may show what a current user on TMC recently experienced:
Meter #1 Grid voltage on
Meter #2 After the cut off switch off
Meter #3 Between the panels and the gateway On because they don't drain completely
Meter #4 On the output/input of each powerwall On because they don't drain completely
Meter #5 On the output of the gateway to the house Off because the powerwalls were drained
Meter #6 On the line to the Car wall charger Off
The person I'm thinking of called SCE and they came out to the house and told him the grid was On and he needed to contact Tesla. I can't remember who he called next. Then he called Tesla. He finally talked to someone a few hours later and they suggested he unscrew a cover and pull on a cut off switch to turn it on.
I would have been able to see right away the grid was on, the powerwalls were drained but still had voltage and the cut off switch had no power. I would have been able to go right to the cut off switch.
What would everyone else have to go through to figure it out?
I can not think of a legal and safe way to hook a small wire to a 100 or 200 amp line that I would want at my house and that would only be useful if you do not have the backup switch unlike the other person you are referring to.What if the electrician hooked a meter to the house side of the main circuit breaker?